This episode takes viewers into the ICU red zone of a Wuhan hospital, capturing the heart-stopping life-and-death battles between medical workers and COVID-19. Through immersive filming, it reveals the immense pressure, difficult decisions, and unwavering dedication of frontline healthcare workers during the darkest days of the pandemic.

Focusing on the precious encounters among Shanghai medical workers in Wuhan, this episode portrays the deep bonds formed between colleagues from different hospitals, as well as the touching connections between doctors, nurses, and patients in the fight against the virus.

Following the Shanghai ECMO team at Leishenshan Hospital, this episode documents how medical experts used advanced life-support technology to pull critically ill patients back from the brink of death, showcasing both technical excellence and human compassion.

Through the stories of one hundred medical workers in Wuhan, this episode removes the masks and protective gear to reveal the faces behind the heroes — their fears, hopes, exhaustion, and resilience in the face of an unprecedented public health crisis.

Centered on letters and messages from Wuhan, this episode presents the emotional correspondence between frontline medical workers and their families, while also reflecting on the broader epidemic prevention efforts in Shanghai's public health system.

This episode shifts the focus to Shanghai, documenting how local hospitals and public health institutions built a solid defense line against the pandemic. It records moving stories between medical staff and patients within Shanghai's healthcare system.